Scrolling a Card?

[Frank Leahy]

On Monday, February 23, 2004, at 12:19  AM, 
use-revolution-request at lists.runrev.com wrote:

> Hmmm...couple of things:
>
> 1) I might try to convert it to a mouseMove because polling mouse 
> events
> (repeat while the mouse is down...) hogs the processor.
>

Unless you have a background process that needs time in your app, it 
doesn't really matter if the processor gets hogged for a bit (and OSX 
should take care of other processes ok) -- but it might be interesting 
to code it that way.


> 2) It doesn't appear to have bounds. What happens if you try to drag 
> the
> image past the hScroll or vScroll limits of the scrollbars? Does the 
> engine
> stop it automatically? Does it throw an error?
>
> Ken N.
>

Setting the scroll negative will pin it to zero, and setting it > max 
will pin it to max.  Notice too I get the current value of the scroll 
each time through the loop, so that once it's pinned mouse movement in 
the opposite direction will start scrolling right away.

-- Frank